Question: What namesake of germanium has a CPI inflation rate of 4.2?
Paraphrase: What namesake of germanium includes a CPI swelling rate of 4.2?
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q867 wdt:P138 ?answer . ?answer wdt:P1279 ?x FILTER(contains(?x , '4.2'))}